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Posted to issues@hbase.apache.org by "Nicolas Spiegelberg (JIRA)" <ji...@apache.org> on 2010/07/15 02:55:51 UTC
[jira] Commented: (HBASE-1511) Pseudo distributed mode in
LocalHBaseCluster
[ https://issues.apache.org/jira/browse/HBASE-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888648#action_12888648 ]
Nicolas Spiegelberg commented on HBASE-1511:
--------------------------------------------
What I am tackling
- separate processes for Master & RS
- script to add more RS in a psuedo-distributed cluster
- script to add backup masters in a psudo-distributed cluster
- config file that
a. explains basic psuedo-distributed mode
b. shows the extra options to add for running on top of pseudo-distributed HDFS
> Pseudo distributed mode in LocalHBaseCluster
> --------------------------------------------
>
> Key: HBASE-1511
> URL: https://issues.apache.org/jira/browse/HBASE-1511
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.19.3
> Reporter: Evgeny Ryabitskiy
> Assignee: Nicolas Spiegelberg
> Priority: Minor
> Fix For: 0.92.0
>
>
> After changes to config and adding of parameter:
> {code}
> <property>
> <name>hbase.cluster.distributed</name>
> <value>false</value>
> <description>The mode the cluster will be in. Possible values are
> false: standalone and pseudo-distributed setups with managed Zookeeper
> true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh)
> </description>
> </property>
> {code}
> running HBase in pseudo destr mode become not so easy, I think description for false variant is wrong and you can't get pseudo-distributed mode setting this option to false now.
> I wish to have some option in LocalHBaseCluster for pseudo destr mode where I wish to have:
> * separate processes for Master and HRSs
> * ability to dynamically change HRS number in cluster
> * managed ZK cluster (like it is in local mode now)
> * managed small local HDFS cluster
> I think it is very useful for testing, debugging and for user experience with HBase, who want to try something close to real HBase not some emulation in standalone mode.
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